[libvirt PATCH] util: add missing FSF copyright statement

[Daniel P. Berrangé]

We previous added code for passing FDs which was explicitly derived from
gnulib's passfd code:

  commit 17460825f3c78e1635f2beb0165c5a19e3b09f7d
  Author: Daniel P. Berrangé <berrange at redhat.com>
  Date:   Fri Jan 17 11:57:17 2020 +0000

    src: implement APIs for passing FDs over UNIX sockets

    This is a simplified variant of gnulib's passfd module
    without the portability code that we do not require.

while the license was unchanged, we mistakenly failed to copy the FSF
copyright header which is required by the license terms.

Reported-by: Bruno Haible <bruno at clisp.org>
Signed-off-by: Daniel P. Berrangé <berrange at redhat.com>
---

Pushed as a trivial fix

 src/util/virsocket.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/util/virsocket.c b/src/util/virsocket.c
index 9aa29f1eb6..c8435a1087 100644
--- a/src/util/virsocket.c
+++ b/src/util/virsocket.c
@@ -1,5 +1,6 @@
 /*
  * Copyright (C) 2020 Red Hat, Inc.
+ * Copyright (C) 2011-2020 Free Software Foundation, Inc.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
-- 
2.28.0